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Proceedings 2017, 1(4), 318; doi:10.3390/proceedings1040318

Layer by Layer Deposition of Colloidal SnO2 Nano Particles

1
Laboratory for Gas Sensors, Department of Microsystems Engineering, University of Freiburg, Georges-Köhler Allee 102, 79110 Freiburg, Germany
2
Fraunhofer Institute for Physical Measurement Techniques (IPM), Heidenhofstr. 8, 79110 Freiburg, Germany
3
Department of Computer Science, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 11, 28049 Madrid, Spain
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 22 August 2017
Download PDF [2076 KB, uploaded 22 August 2017]

Abstract

The gas sensing properties of functional metal oxide layers depend on multitude parameters, including vacancy concentration, layer morphology and thickness, size and shape of the nano/microstructure, and porosity. Using colloidal tin oxide inks we demonstrate a layer by layer deposition technique to control the thickness and composition of gas sensitive layers. To do this we combine inkjet-printing with colloidal suspensions of SnO2 particles to provide a scalable method to interface microelectromechanical systems (MEMS) with nano particles. The approach may pave the way towards an industry ready integration technique to incorporate gas sensitive quantum dots or hybrid nanomaterials in arbitrary sensing devices.
Keywords: tin oxide; colloidal dispersion; inkjet printing; nano-micro integration; MEMS tin oxide; colloidal dispersion; inkjet printing; nano-micro integration; MEMS
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gao, H.; Lyu, X.; Wöllenstein, J.; Palzer, S. Layer by Layer Deposition of Colloidal SnO2 Nano Particles. Proceedings 2017, 1, 318.

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